TY - JOUR
AU - Sadjedi, Hamed
AB - BACKGROUND: Speech synthesis models have been considered as viabletools for performance evaluation of cochlear stimulation algorithms, due tothe difficulties of clinical tests.OBJECTIVE: The present study has developed a tool that can be usedbefore any audio signal reconstruction algorithm, which shows moreconformity with the electrophysiological parameters of the patient inevaluation of the cochlear implant stimulation algorithms.METHODS: In this method, excitable nerve fiber characteristics suchas stimulation threshold and effective refractory period have beenconsidered in the signal pre-reconstruction process. This algorithm subsumesthe user's biological parameters (e.g., the manner of distribution of theremaining intact nerve fibers) as well as the stimulation signal parameters(e.g., stimulation rate, pulse width, amplitude of stimulation, the distancebetween stimulation electrode and fibers) in the signal pre-reconstruction.RESULTS: Effect of changes in these parameters can be observed bythe number of excited fibers, which is directly related to the signalintensity and pitch frequency perceived by the user. The obtained resultsfrom simulations are in accordance with previous clinical findings. Also,the ability of the proposed tool can be seen by the correspondence betweenthe results obtained from the proposed model and the amplitude growthfunctions of the cochlear implant users.CONCLUSIONS: This paper has introduced a tool for signalreconstruction from electrical stimulation so that a more comprehensivecriterion for examination of the stimulating algorithms in cochlear implantcan be achieved.
TI - A new approach for speech synthesis in cochlear implant systems based on electrophysiological factors
JF - Technology and Health Care
DO - 10.3233/THC-161265
DA - 2017-01-01
UR - https://www.deepdyve.com/lp/ios-press/a-new-approach-for-speech-synthesis-in-cochlear-implant-systems-based-mjw4Gf6Zcs
SP - 221
EP - 235
VL - 25
IS - 2
DP - DeepDyve
ER -